Question

which scientists explained that magnetic force lines must have certain properties?​

Answer 1

Answer:

William Gilbert

The Englishman William Gilbert (1540-1603) was the first to investigate the phenomenon of magnetism systematically using scientific methods. He also discovered that the Earth is itself a weak magnet

Answer 2

Answer:

William Gilbert

The Englishman William Gilbert (1540-1603) was the first to investigate the phenomenon of magnetism systematically using scientific methods. He also discovered that the Earth is itself a weak magnet.